ENGLISH
INSTRUCTION MANUAL
Dual-Range High-Voltage Non-Contact Tester
Low Range: 50V to 1.5kV AC
High Range: 1.5kV to 132kV AC
HVNCVT1
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ENGLISH
GENERAL SPECIFICATIONS
The Dual-Range High-Voltage Non-Contact Tester (HVNCVT1) checks for the
presence of AC voltage without making any disconnection in cables, wall sockets,
fuses, circuit breakers, junction boxes, etc. No current flow is needed for correct
operation. The tester warns against dangerous voltage from low to high voltage
applications up to 132kV without contacting the energized conductor. The lowrange setting should be used for detecting 50V AC to 1.5kV AC. It may be used as
a hand-held device ONLY when checking for low voltage. The high-range setting
should be used for detecting 1.5kV AC to 132kV AC. It should ONLY be used with a
hot stick when checking for high voltage.
Always follow approved work safety practices and clearances per OSHA Sub-parts
R & V and all company work rules. For Minimum Approach Distances (MAD), see
OSHA Tables R-6 and R-7 (pages 8 & 9) in this manual.
• Operating Temperature: 32° to 122°F (0° to 50°C) @ 85% relative humidity
• Storage Temperature: 14° to 122°F (-10° to 50°C) @ 85% relative humidity
• Dimensions: Tester: 13" x 3.15" x 2.64" (330 x 80 x 67mm)
Case: 14" x 8" x 3.5" (356 x 203 x 89 mm)
• Weight: 8 oz. (227 g)
• Power Source: One 9V battery
Off:
• Power Consumption:
Specifications subject to change.
Less than 5uA
Low range mode:
High range mode:
(50V to 1.5kV AC) Less than 40mA
(1.5kV to 132kV AC) Less than 40mA
SYMBOLS
Warning or Caution
Risk of Electrical Shock
Double Insulated
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2
WARNINGS
To ensure safe operation and service of the tester, follow these instructions.
Failure to observe these warnings can result in severe injury or death.
• Use extreme caution when testing live electrical circuits due to risk of injury from
electrical shock.
• When testing for high voltage, always use hot sticks and rubber gloves meeting
industry standards.
• Follow approved work safety practices and clearances per OSHA Sub-parts
R & V and your company work rules.
• Always test on a known live circuit to verify tester functionality prior to use.
• Do not exceed the limits marked on the instrument itself. Never test voltage
more than 132kV AC RMS.
• Never ground yourself when taking measurements. Do not touch exposed
circuit elements.
• Observe the proper safety precautions when working with voltage above 30V AC
RMS to avoid electrical shock hazard.
• Do not assume equipment or conductors are, or will remain, de-energized.
Always install proper grounding devices before starting procedure.
• Do not operate tester in an explosive atmosphere.
• Do not expose tester to rain or moisture. This increases the risk of fire
or electric shock.
• Do not rely on this tester for shielded wire or cable with concentric neutrals.
• Do not let the unit make contact with live line voltage. Do not touch any exposed
wiring, connections or other energized parts of an electrical circuit.
• 3-phase feeder cables with conductors close to each other may self-cancel the
electric field and not be detected by the device. Verify that the phase conductors
are separated by at least 15" (381 mm) before testing for AC voltage.
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ENGLISH
FEATURE DETAILS
1
Back of TesterFront of Tester
1
0
32
4 5
6 7
9
8
1. Voltage sensor
2. "TEST" button
3. On/Off button
4. Low-Range button
5. High-Range button
6. Red Low-Range LED
7. Red High-Range LED
8. Hot stick connection point
9. Battery cover
10. Blue LED voltage indicators
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OPERATING INSTRUCTIONS
FOR USE BY TRAINED PERSONNEL ONLY
Anyone using this instrument should be knowledgeable and trained about the risks
involved with measuring medium and high voltage. They must also understand the
importance of taking safety precautions as well as testing the instrument before and
after using it to ensure that it is in good working condition.
EXAMPLES OF APPLICATIONS:
• Non-contact detection of live AC voltage
• Finding faults in cables
• Checking and detecting live high voltage cables
• Tracing live wires
• Checking grounding equipment
Fig. 1: Ideal detection angle Fig. 2: Finding a cable fault Fig. 3: Voltage detection
for overhead lines
90°
VG
HOT STICK
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HOT STICK
ENGLISH
OPERATING INSTRUCTIONS
Prior to use, always inspect the tester for visible signs of damage. If there is
any sign of damage, or if the tester does not operate correctly, discontinue use.
Always test on a known live circuit to verify tester functionality. The tester should be
used as an indication only.
Tester should be kept clean and dry. If it is not, wipe with a clean, dry lint-free cloth.
MODES OF OPERATION
The HVNCVT1 can operate in two ranges. In low-range mode, the red LED
low-range button 4 will illuminate.
high-range button 5 will illuminate.
ON/OFF BUTTON
Press the on/off button
two blue LEDs
10
FEATURE DETAILS
"TEST" BUTTON
Press and hold the TEST button
steady blue LED light
ONLY confirms battery sufficiency, system integrity, and operation/active mode.
Always test on known live circuit to verify tester functionality prior to use.
to turn the unit on or off. When the unit is turned on, the
3
will flash and the unit will emit a high-pitched beep sound. See
for locations of blue LEDs.
and listen for a steady beep sound. This self-test function
10
In high-range mode, the red LED 7 below the
See
FEATURE DETAILS
to perform a self-test on the unit. Look for a
2
for locations of red LEDs.
below the
6
If the two
blue LEDs do not glow and the beep sound is not present, replace battery.
LOW-RANGE BUTTON
When the unit is turned on, press the low-range button
range setting. Look for a steady red LED
the two blue LEDs
The Low range is 50V AC to 1.5kV AC.
Place the probe tip of the tester 1 near a low voltage source, but not touching it. Look
for the blue LEDs
voltage is present. As the probe tip gets closer to the voltage source, the blue LEDs
and beep sound will be constant. See Fig. 1 on page 5 for ideal detection angle. Always
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to blink and listen for a beep sound.
10
t
o blink quickly and listen for a quickened beep sound when
10
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below the low-range button. Also look for
6
6
to switch the unit to the low-
4
OPERATING INSTRUCTIONS
maintain the minimum approach distances listed in OSHA Tables R-6 and R-7 on pages
8 & 9 in this manual.
HIGH-RANGE BUTTON
Before using the unit in High range, hot stick must be attached. Only use with hot sticks
and rubber gloves meeting industry standards. Always follow approved work safety
practices and clearances per OSHA Sub-parts R & V and all company work rules.
When the unit is turned on, press the high-range button
range setting. Look for a steady red LED
the two blue LEDs
to blink and listen for a beep sound.
10
below the high-range button. Also look for
7
to switch the unit to the high-
5
The High range is 1.5kV AC to 132kV AC.
Place the probe tip of the tester 1 near a high voltage source, but not touching it.
Look for the blue LEDs
to blink quickly and listen for a quickened beep sound
10
when voltage is present. As the probe tip gets closer to the voltage source, the blue
LEDs and beep sound will be constant. See Fig. 1 on page 5 for ideal detection angle.
Always maintain the minimum approach distances listed in OSHA Tables R-6 and R-7
on pages 8 & 9 in this manual.
FINDING FAULTS IN CABLE
The tester may be used for finding faults in some flexible cables. Press the appropriate
button for low-range
or high-range
4
according to the voltage of the energized
5
cable being detected. Move the tester along (but not touching) the cable, listening for the
rapid beeping or steady sound and looking for the rapid blinking or steady light from the
blue LEDs
on page 5.
. When the fault is reached, the unit will no longer beep or blink. See Fig. 2
10
Always maintain the minimum approach distances listed in OSHA Tables R-6
and R-7 on pages 8 & 9 in this manual.
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ENGLISH
OPERATING INSTRUCTIONS
Always follow approved work safety practices and clearances per OSHA Sub-parts
R & V and all company work rules. For Minimum Approach Distances (MAD), see
OSHA Tables R-6 and R-7 below.
TABLE R-6 – ALTERNATIVE MINIMUM APPROACH DISTANCES
FOR VOLTAGES OF 72.5 kV AND LESS
Distance
Nominal voltage
(kV)
Phase-to-ground exposure Phase-to-phase exposure
phase-to-phase
ft. m ft. m
0.050 to 0.300
0.301 to 0.750
2
2
Avoid Contact Avoid Contact Avoid Contact Avoid Contact
1.09 0.33 1.09 0.33
0.751 to 5.0 2.07 0.63 2.07 0.63
1
5.1 to 15.0 2.14 0.65 2.24 0.68
15.1 to 36.0 2.53 0.77 2.92 0.89
36.1 to 46.0 2.76 0.84 3.22 0.98
46.1 to 72.5 3.29 1.00 3.94 1.20
1
Employers may use the minimum approach distances in this table provided the worksite is
at an elevation of 3,000 feet (900 meters) or less. If employees will be working at elevations
greater than 3,000 feet (900 meters) above mean sea level, the employer shall determine
minimum approach distances by multiplying the distances in this table by the correction factor
in OSHA's Table R-5 Altitude Correction Factor, corresponding to the altitude of the work.
2
For single-phase systems, use voltage-to-ground.
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OPERATING INSTRUCTIONS
TABLE R-7-ALTERNATIVE MINIMUM APPROACH DISTANCES
FOR VOLTAGES OF MORE THAN 72.5 kV
Distance
Nominal voltage
(kV)
Phase-to-ground exposure Phase-to-phase exposure
phase-to-phase
ft. m ft. m
72.6 to 121.0 3.71 1.13 4.66 1.42
121.1 to 145.0 4.27 1.30 5.38 1.64
145.1 to 169.0 4.79 1.46 6.36 1.94
169.1 to 242.0 6.59 2.01 10.10 3.08
242.1 to 362.0 11.19 3.41 18.11 5.52
362.1 to 420.0 13.94 4.25 22.34 6.81
420.1 to 550.0 16.63 5.07 27.03 8.24
550.1 to 800.0 22.57 6.88 37.34 11.38
1 2 3
1
Employers may use the minimum approach distances in this table provided the worksite is
at an elevation of 3,000 feet (900 meters) or less. If employees will be working at elevations
greater than 3,000 feet (900 meters) above mean sea level, the employer shall determine
minimum approach distances by multiplying the distances in this table by the correction factor
in OSHA's Table R-5 Altitude Correction Factor, corresponding to the altitude of the work.
2
Employers may use the phase-to-phase minimum approach distances in this table provided
that no insulated tool spans the gap and no large conductive object is in the gap.
3
The clear live-line tool distance shall equal or exceed the values for the indicated voltage ranges.
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ENGLISH
OPERATING INSTRUCTIONS
PROTECTIVE CLOTHING AND PERSONAL PROTECTIVE EQUIPMENT (PPE)
TABLE 130.7 (C) (16) FROM NFPA 70E 2015
Note below that this new PPE category table no longer references a category 0.
Min.
APTV
PPE
Category*
Clothing
Rating Cal/
cm
2
Required
Garments
Required Protective
Equipment
Arc-rated
1
and
and
1
1
3
4
8
25
40
1
clothing
PPE
Arc-rated
clothing
2
PPE
Arc-rated
3
4
clothing
system
and PPE
Arc-rated
clothing
system
and PPE
Long-sleeve shirt and pants or
coverall. Flash suit hood or face
2
shield
hard hat liner (AN).
Long-sleeve shirt and pants or
coverall. Flash suit hood or face
shield
rainwear or hard hat liner (AN).
Long sleeve shirt (AR). Pants (AR).
Coverall (AR). Flash suit jacket
(AR). Flash suit pants (AR). Flash
suit hood. Gloves
rainwear or hard hat liner (AN).
Long sleeve shirt (AR). Pants (AR)
Coverall (AR). Flash suit jacket
(AR). Flash suit pants (AR). Flash
suit hood. Gloves
rainwear or hard hat liner (AN).
. Jacket, parka, rainwear or
2
and balaclava. Jacket, parka,
1
. Jacket, parka,
1
. Jacket, parka,
Hard hat.
safety goggles (SR). Hearing
protection (ear canal inserts).
Heavy duty leather gloves3.
Leather footwear (AN).
Hard hat.
safety goggles (SR). Hearing
protection (ear canal inserts).
Heavy duty leather gloves3.
Leather footwear (AN).
Hard hat.
safety goggles (SR). Hearing
protection (ear canal inserts).
Leather footwear (AN).
.
Hard hat.
safety goggles (SR). Hearing
protection (ear canal inserts).
Leather footwear (AN).
Safety glasses or
Safety glasses or
Safety glasses or
Safety glasses or
AN = as needed (optional) AR = as required SR = selection required
*
One of the 3 basic methods is used to determine an HRC for a job task.
1
Arc rating is defined in article 100 NFPA 70E 2015 Edition.
2
Face shields are to have wrap-around guarding to protect not only the face but also the
forehead, ears and neck, or alternatively, an arc-rated flash suit hood is required to be worn.
3
If rubber insulating gloves with leather protectors are used, additional leather or arc-rated
gloves are not required. The combination of rubber insulating gloves with leather protectors
satisfies the arc flash protection requirement.
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MAINTENANCE
BATTERY REPLACEMENT
Back of Tester
Unscrew the battery cover on the rear
1.
Screws
and lift the battery cover off the tester.
2.
Remove old battery.
3.
Replace with a new battery (9V).
4.
Reinstall the battery cover
and fasten the cover screws.
Battery
Connector
CLEANING
Be sure tester is turned off and wipe with a clean, dry lint-free cloth.
use abrasive cleaners or solvents.
STORAGE
Battery
Cover
Do not
If the tester is not to be used for periods of longer than 60 days, remove the
battery and store separately from the tester.
DISPOSAL / RECYCLE
Do not place equipment and its accessories in the trash. Items must be
properly disposed of in accordance with local regulations.
Please see www.epa.gov or www.erecycle.org for additional information.
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